Bisphenol-A Study: Polycarbonates=Source

A recent Harvard study showed that polycarbonate bottles do indeed appear to increase bisphenol-A levels in humans. After a "wash-out" period where study subjects drank from non-plastic bottles, they started drinking from poly bottles...and voila, bisphenol-A showed up in their urine.

The study doesn't get in to the effects, if any, of the bisphenol-A on our bodies, but does provide some interesting reading.

Read the Harvard press release here.

You can peruse a PDF of the full-blown study, as published by the journal Environmental Health Perspectives here.